23916971839 has 4 divisors (see below), whose sum is σ = 23917792960. Its totient is φ = 23916150720.

The previous prime is 23916971809. The next prime is 23916971861. The reversal of 23916971839 is 93817961932.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23916971839 - 2⁹ = 23916971327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23916971809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365199 + ... + 425680.

It is an arithmetic number, because the mean of its divisors is an integer number (5979448240).

Almost surely, 2^23916971839 is an apocalyptic number.

23916971839 is a deficient number, since it is larger than the sum of its proper divisors (821121).

23916971839 is an equidigital number, since it uses as much as digits as its factorization.

23916971839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821120.

The product of its digits is 4408992, while the sum is 58.

The spelling of 23916971839 in words is "twenty-three billion, nine hundred sixteen million, nine hundred seventy-one thousand, eight hundred thirty-nine".